Manuscript Summary: "The king of palimpsests": parchment fragments from late antiquity that were erased and reused at a later time, sometimes more than once. The scholarly significance of the palimpsests normally lies in the older texts. Some works have only been preserved as palimpsests. This volume, compiled by the librarian Ildefonse of Arx before and after 1800 from single fragments found in the abbey library, contains among many other texts the oldest known copy of the Mulomedicina of Vegetius (5th century), the only known poems and prose by Flavius Merobaudes (5th century) and the so-called "St. Gallen oracles", or "Sortes Sangallenses" (6th century). (smu)